Abstract: A foldable modular scissors bridge adapted to be transported by a transport vehicle in a folded-together state and comprising two bridge modules, each formed by one or two pairs of spaced-apart track supports. Run-up ramps disposed at opposite ends of each bridge support are rigidly connected to their bridge supports. A respective ramp end tube, in the form of a hinge part, is disposed at each tip of the run-up ramps. A respective coupling tongue is disposed on each run-up ramp at a distance from the tip thereof. The coupling tongue of the upper bridge module forms an articulated joint with the ramp end tube of the lower bridge module.

Abstract: A floating bridge includes at least two pontoons adjoining one another in a longitudinal direction of the bridge. Each pontoon includes two outside floats and at least two inside floats hinged together in a transverse direction of the bridge. Each float includes an upper roadway section and at least the inside floats each include a bottom plate having an integrated tension chord. Connecting elements connecting the inside floats of the two adjoining pontoons. The connecting elements are arranged in a region of the tension chords integrated into the bottom plates of the inside floats and respectively connect the tension chords of the two adjoining inside floats. Each connecting element comprises a bolt coupling including a horizontally arranged bolt.

Abstract: A bridge-laying apparatus has a vehicle adapted to travel in a longitudinal direction and a longitudinally extending laying arm adapted to lay down and pick up bridges formed of at least one bridge section. A rigid link has an upper end pivoted on the laying arm and a lower end pivoted directly on the vehicle and an expansible main cylinder offset horizontally from the link has an upper end pivoted on the arm and a lower end pivoted directly on the vehicle. A pusher cylinder extending nonparallel to the main cylinder has a lower end pivoted on the vehicle and an upper end pivoted on the arm.

Abstract: A trough bridge is composed of a plurality of interconnected bridge sections each formed of a roadway deck segment and side wall segments located at opposite sides of the roadway deck segment. An articulation for pivotally attaching the side wall segments to each roadway deck segment includes spaced and aligned first hinge sleeves affixed to the roadway deck segment; a separate first hinge recess defined next to each first hinge sleeve; spaced and aligned second hinge sleeves affixed to the side wall segments; and a separate second hinge recess defined next to each second hinge sleeve. In an assembled state the first hinge sleeves are received in respective second hinge recesses and the second hinge sleeves are received in respective first hinge recesses. The first and second hinge sleeves are in alignment with one another. A hinge pin passes through the first and second hinge sleeves for pivotally joining the side wall segments to the roadway deck segment.

Abstract: Freight is transferred between a car of a train riding on rails extending in a travel direction and a stationary street vehicle while the train is moving slowly in the travel direction by displacing a grab into a position above the rails, identifying the piece of freight and moving the grab in the travel direction synchronously with the train above the piece of freight on the train, and then engaging the grab with the piece of freight while the grab moves synchronously with the train. The piece of freight is then lifted with the grab off the train and the grab are displaced in a transfer direction transverse to the travel direction while the grab moves synchronously with the train until the piece of freight is clear of the train. Movement of the grab in the travel direction is then arrested and the grab and the piece of freight are moved in the transverse transfer direction and the piece of freight is deposited on a stationary support. The piece of freight is then moved from the support to the street vehicle.

Abstract: A deployable bridge is assembled from individual components. The components include cross girders and pavement slabs disposed between the cross girders, the cross girders each having opposite ends and first and second continuous girders each disposed along one of the opposite ends, respectively, of the cross girders. Each continuous girder comprises an upwardly pointing truss having top and bottom chords and truss members arranged between the top and bottom chords and connected to the top and bottom chords at top and bottom nodal points, respectively. The top and bottom chords are each divided in regions of the top and bottom nodal points into a plurality of top chord members and bottom chord members. Each continuous girder further includes connecting elements connecting together the top chord members and connecting together the bottom chord members.

Abstract: A bridge is assembled by locking truss-like girders along the sides of a bridge section to the transverse beams by a bayonet-type coupling and a swinging of the trusses relative to the transverse beams. Roadway plates are supported by the transverse beams and additional sections are assembled onto the previous sections. The sections can be advanced across an obstruction on a pair of support beams guided through roller frames affixed to at least the first and last sections, which support beams can later be mounted on the bridge span to function as guardrails.

Abstract: A roller carriage for portable bridges or bridge parts have a rocker carrier connected by a support stud to the bridge structure while the rocker bodies are connected to the rocker carrier by pins which are formed in one piece and inseparably with the rocker bodies. A pair of rollers are journaled on each of the rocker bodies.

Abstract: A guide groove provided in an inner lower cord of a bridge section of a portable bridge includes an extruded profile section which is comprised of a vertical strip having an upper end and a lower end, and being composed of, over its entire height in at least a partial cross section thereof, a homogeneous material; and an upper wall section extending from the upper end of the vertical strip and a lower wall section extending from the lower end of the vertical strip. The guide groove has an increased service life when the vertical strip has a thickness in cross section which is reduced at the center portion of the bridge section over at least a part of the length of the bridge section in respect to at least one of the end portions of the bridge section. The guide groove is repairable by a method in which an insertion element is replaced, the insertion element being provided over a part of the length of the bridge section in which the thickness in cross section of the vertical strip is not reduced.

Abstract: The invention relates to a bridge comprising at least one bridge elements. The bridge elements has a base body that has chamfered end surfaces on which roadway plates rest that can be necessarily brought out of a drive-on position into a coupling position by hinged ramp plates in that respectively two bridge elements are moved toward the ramp plates into a drive-on position. The apparatus for laying the bridge has a guide (support rail, holding sheet) for the guide members of the ramp plates so that the bridge elements can be reliably guided together. Moreover, the apparatus has guide rails with which the locking elements (hook, pins) can be centrally actuated.

Abstract: A dismountable bridge comprises at least one bridge section including a top deck and a bottom boom disposed underneath the top deck. The bottom boom includes a mechanism for adjusting the length of the bottom boom. Rigid end supports each have one end hinged to a respective one of the ends of the top deck and have another end hinged to a respective one of the ends of the bottom boom. Tension elements are disposed laterally of the bridge section and are stressed only tensionally. Each tension element has one end hinged to one end of the top deck and another end hinged to an end of the bottom boom opposite to the one end of the top deck. The bridge section can be changed from a transport position, in which the top deck and the bottom boom are collapsed for maintaining a low height for transporting, and into an operating position in which the top deck is remote from the bottom boom at least at one end of the bridge section.

Abstract: A deployable bridge includes a plurality of identical bridge sections each having two identical track elements. Each track element has a roadway carrier, a bottom boom and adjustment elements connecting the bottom boom with the roadway carrier. The bottom boom of each track element includes a mid section and two end sections flanking the mid section. Each track element further comprises pillars having opposite first and second ends. The first end of the pillars is articulated to the mid section of the bottom boom. Each track element also has a drive shaft assembly suspended from the track element; spindle sleeves inserted on the drive shaft assembly; and a spindle head threadedly mounted on each spindle sleeve. The pillars are articulated by the second end thereof to a respective spindle head.

Abstract: A movable bridge has a bridge section having an upper face with a roadway thereon and a hinge having a horizontal axis perpendicular to the longitudinal direction of the bridge. There is a lower chord fixed to and extending along the length of the bridge section. The bridge section includes a roadway section disposed in an end region of the bridge section and pivotally attached at the hinge.

Abstract: A deployable modular bridge has a central girder; two side girders flanking the central girder; and couplings connecting each side girder to the central girder along the lower zones of the girders parallel to the bridge length. The couplings are arranged symmetrically with respect to a central vertical longitudinal plane of the bridge and permit displacement of the side girders relative to the central girder parallel to the bridge length. Each coupling includes a rail affixed to the central girder and extending parallel to the bridge length. The rail has a guide track formed thereon. Each coupling further includes a roller mounted on a respective side girder and engaging the guide track.

Abstract: A rollable temporary roadway is composed of individual supporting elements (2) which are articulately connected by hinge-like joints (7), each of which is formed by a bead (5) and the associated recess of a claw (6). The joints (7) are looped by at least one cable (10), with the cable being guided below the joints. A reeling device (20) for rolling up an installed temporary roadway (1) includes a pipe (21), hub members (22) which can be mounted on the pipe, and a cable arrangement (32, 33, 34).